I am looking for the procedure for
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I am looking for the procedure for

osuamp (Mechanical)

(OP)

23 Jul 03 04:13

I am looking for the procedure for hardfacing the drum safety valve seat (operating temp ~ 400 C) but i don't know what number of stellite for this safety valve if material of seat bushing is SA 182 F347

I would appreciate any suggestions for this answer.

JAlton (Mechanical) · Answer 1 · 2003-07-28 11:29:26

Is this a Crosby Valve?
#6 Stellite with Standard Overlay
MInimal Preheat, No PWHT
Gas Tungsten Ara Welding (TIG) Procedure

J. Alton Cox
President
DeLuca Test Equipment
www.delucatest.com

osuamp (Mechanical) · Answer 2 · 2003-07-29 00:28:37

Thank you for your suggestion .My safety valve is consolidated type 1700-S2 if you have any more information please recommend me again

nagarajank (Mechanical) · Answer 3 · 2003-07-29 07:14:13

Since the loading on the Valve seat in a Safety Valve is of Impact nature and Stellite is poor in withstanding Impact loads, generally Stelliting of Seats of a Safety Valve is not recommended.

NGiLuzzu (Mechanical) · Answer 4 · 2003-08-01 03:07:58

About Stellite, you can also see:
      Thread725-23517 ;
      Thread330-23518 .
Maybe you'll find some useful links...
Bye,    'NGL

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I am looking for the procedure for
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